The red line is the top 1%. That is roughly $400K+ annual income, judging from this tool
http://www.nytimes.com/interactive/2012/01/15/business/one-percent-map.html?_r=0 There is data somewhere that will give a more precise number, if needed.
The yellow line is the top 20%. That is roughly $100K and higher annual income. $100K isn't really a "Wall Street" income; only junior Wall Streeters are making that little.
The light blue line is in the top 60% but below the top 40%. That is roughly $40K to $60K annual income. That is basically the median household income in the US.
The dark blue line is the bottom 20%. That is roughly $20K annual income and below. That is the minimum wage group, among others.